ExOne jumps in 1st day of trading as public co.

NEW YORK 
Shares of ExOne are soaring more than 45 percent on the 3D printer maker's first day as a publicly traded company.

The company's initial public offering of 5.3 million shares raised $95.4 million. The IPO includes 5 million shares being sold by ExOne and 300,000 shares being sold by Rockwell Holdings Inc., which has ties to ExOne Chairman and CEO S. Kent Rockwell.

The IPO priced at $18 each, the high end of its $16 to $18 range.

The underwriters have a 30-day option to buy up to an additional 483,333 shares from ExOne Co. and 311,667 shares from Rockwell Holdings to cover any excess demand.